How to double buffer .NET controls on a form?

Question

How can I set the protected DoubleBuffered property of the controls on a form that are suffering from flicker?

Answer 1

This caused me a lot of grief for two days with a third party control until I tracked it down.

protected override CreateParams CreateParams
{
    get
    {
        CreateParams cp = base.CreateParams;
        cp.ExStyle |= 0x02000000;
        return cp;
    }
}

I recently had a lot of holes (droppings) when re-sizing / redrawing a control containing several other controls.

I tried WS_EX_COMPOSITED and WM_SETREDRAW but nothing worked until I used this:

private void myPanel_SizeChanged(object sender, EventArgs e)
{
     Application.DoEvents();
}

Just wanted to pass it on.